If the cost of repair so specified as to sidewalk area next adjacent to any lot is not paid to the Director of Public Works within 90 days after the mailing of notice thereof, the Director shall file in the office of the Recorder of the City and County a verified claim containing a particular description of the property subject to such lien, the place and general nature of sidewalk repair for which lien is claimed, the dates of mailing or delivery of notice to repair and of cost of repair, the name of the owner of the property as aforesaid and the amount of the lien claimed, which shall include the cost of verification and filing thereof.